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CVE-2026-39808

A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiSandbox 4.4.0 through 4.4.8 may allow attacker to execute unauthorized code or commands via insert attack vector here

Scores

9.8
CVSS 9.8 out of 10, critical severity.
47.4%
EPSS 47.4% chance of exploitation in the next 30 days.

The facts

Published
14 April 2026
Last changed
17 July 2026
NVD status
Analyzed
Severity
Critical, CVSS 9.8 out of 10 (version 3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
Affects
  • fortinet fortisandbox
Known exploited
Yes. CISA added it to the Known Exploited Vulnerabilities catalogue on 16 July 2026.
EPSS
47.4% chance of exploitation activity in the next 30 days (percentile 99).

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References